Carbon-reinforced resin case makes it unsusceptible to cold, heat, and other external influences. Resin bracelet for extreme durability and flexibility. Pin buckle for bracelet. Hard, scratch-resistant mineral glass for superior protection. Background illuminator for visibility in low-light situations. World time function shows up to 31 different time zones. Stop function tells elapsed time, split time, and end time up to 24 hours. Countdown timer can be set every second and up to 24 hours in advance. Multifunctional alarm includes daily alarm, date alarm, monthly alarm, and every day of a specific month. Automatic calendar with date, month, and day of the week. Time display can be set to 12 or 24-hour format. Hand moving function with pointers revealing digital displays. Key tones can be switched on and off. Battery powers the watch for roughly three years. Shockproof. Water-resistant up to 20 bar.